Lapsed Feb 21, 2024 on the fee record · High confidence
20-year base term ended Aug 5, 2023
Third maintenance fee unpaid; grace period ended.
Held by Tyler Fusion Technologies, LLC
Filed May 20, 2005 as application 11/134,073 · Granted Feb 21, 2012
Base term, 20 years from filing, plus 1599 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 21, 2024
2003
2027
Clock starts
Aug 5, 2003
Aug 5, 2003
No longer in force
Feb 21, 2024
Feb 21, 2024
Granted
Feb 21, 2012
Feb 21, 2012
Term would have run to
Dec 21, 2027
Dec 21, 2027
base term
patent term adjustment
after the term ends
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,599
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
27
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 21, 2027: its 20-year base term plus 1599 days of term adjustment for prosecution delay. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Aug 5, 2003, when application 10/634,950, the earliest non-provisional in its chain, was filed (this one was filed May 20, 2005) | Aug 5, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1599 days, USPTO patent term adjustment record | Dec 21, 2027 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Feb 21, 2024 | High confidence |
| Computed term end | The steps above, in order | Feb 21, 2024 | High confidence |
This family
| US 7,204,853 | Term ended Sep 2024 | Sep 2024 |
| US 7,316,714 | Term ended Sep 2023 | Sep 2023 |
| US 7,909,869 | Term ended Jun 2025 | Jun 2025 |
| Application PCT/US2004/025090 | PCT application no patent term | no patent term |
| US 7,753,958 | Lapsed on the fee record Jul 2022 | Jul 2022 |
| US 8,123,810 | In force Feb 2028 | Feb 2028 |
| Application 11/134,092 | Abandoned not computed | not computed |
| US 8,118,871 | this patent Feb 2024 | Feb 2024 |
8 of 27 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Mar 30, 2006 Reel 17728, frame 880 | Hanson, Heather S. | Southwest Research Institute | Assignment of Assignor's Interest |
| Mar 30, 2006 Reel 17728, frame 504 | Southwest Research Institute | Flexuspine, Inc. | Assignment of Assignor's Interest |
| Mar 30, 2006 Reel 17728, frame 508 | Gordon, Charles R.; Harbold, Corey T. | Flexuspine, Inc. | Assignment of Assignor's Interest |
| Sep 26, 2023 Reel 65025, frame 374 | Flexuspine, Inc. | Tyler Fusion Technologies, LLC | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
Note
The 1599 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
267
later US patents cite this one
That is top 5% of utility patents granted in 2012 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.